摘要
用视诱发电位（ｖｉｓｕａｌｅｖｏｋｅｄｐｏｔｅｎｔｉａｌ，ＶＥＰ）研究了年龄为２周～９岁正常婴幼儿１５０人的Ｐ＿１波发育过程。结果表明，生后８周内，ＶＥＰ由简单的阳性波组成；２～４个月，Ｐ_１波的潜伏期迅速缩短，低空间频率的Ｐ＿１波潜伏期于４个月发育成熟，中空间频率的Ｐ_１波于４岁发育成熟，高空间频率的Ｐ_１波于９岁发育成熟达到成人水平。婴幼儿的ＶＥＰ振幅显著高于成年人。根据本研究的结果，视功能的发育可以分为３个阶段，第１阶段为出生至生后４个月，第２阶段为生后５个月至４岁，第３阶段为５～９岁。
AbstractThe development of P_1 component of VEP wasstudied in 150 normal infants and children between theage of 2 weeks and 9 vears.The results indicates thatthe VEP consists of simple positive waves within 8weeks foilowing birth,the latencies of P_1 componentsshorten dramatically from 2 to 4 months,the devel-opment of the latencies of low,medium and high spa-tial frequencies of P_1 components reaches aduIt levelsin inhnts and children of 4 months,4 years and 9years, respectively and the VEP amplitudes of infantsand children are significantly higher than those ofadults,Based on the results of our research.the devel-opment of visual function can be divided into 3phases:the first,within 4 months following birth;thesecond,5 months to 4 years and the third,5 to 9 years.
出处
《中华眼科杂志》
CAS
CSCD
北大核心
1994年第2期95-97,共3页
Chinese Journal of Ophthalmology
